A longtime College of Southern Nevada sociology professor is facing felony gun charges in connection with an on-campus shooting on the second day of classes.

Mark J. Bird was charged last month with discharging a gun within a prohibited structure, carrying a concealed weapon without a permit and possessing a dangerous weapon on school property, court records show. He was found bleeding from a self-inflicted gunshot wound to his arm about 8:15 a.m. on Aug. 28 outside a bathroom in the Charleston campus K building.

Inside the bathroom, campus police found a $100 bill taped to a mirror along with a note that said, "For the janitor," according to Birdís arrest report. On the floor of the restroom was a black-and-white, .22-caliber pistol and one spent shell casing.

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While waiting for authorities to arrive, Bird said he had shot himself in protest of President Donald Trump, police noted in their report. The report did not elaborate.